Friday, October 3, 2014

Number Sequences & Extending Tables

                                     Number Sequences

What is a Sequence?

A Sequence is a list of things (usually numbers) that are in order.
Sequence

A Rule

A Sequence usually has a Rule, which is a way to find the value of each term.
 

Example: the sequence {3, 5, 7, 9, ...} starts at 3 and jumps 2 every time:
{3, 5, 7, 9, ...}
 
Extending Tables
 
Use the given rule to fill in the missing values.
Subtract 7
Input (x) Output (y)
10
17
13
9
The rule is "Subtract 7".
This means that you need to subtract 7 from x (the input) to get y (the output).
10 →
10 - 7
→ 3
17 →
17 - 7
→ 10
13 →
13 - 7
→ 6
9 →
9 - 7
→ 2
So the answer is
Subtract 7
Input (x) Output (y)
10
17
13
9

 

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